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THE EFFECTS OF IRRIGATION ON YIELD POTENTIAL AND GRAIN QUALITY PARAMETERS FOR MAIZE HYBRIDS GROWN ON CAMBIC CHERNOZEM
Abstract
Maize (Zea mays L.) is the most important cereal after wheat and rice grown widely throughout the world, playing a major role in human diet or as livestock fodder. Water and nitrogen are the most limiting factors for maize grain yield and it is important to evaluate the response of maize crop to irrigation associated to N fertilization in order to obtain high yields and to prevent nitrate pollution. In this context, it was designed an experiment with the main purpose to analyze the variability of yield potential and the quality of grain for some maize hybrids grown in South of Romania, Teleorman County, Sfin?e?ti Commune. The hybrids used in the experiment were: Pioneer PR38A24 (FAO 350, mid-early), PR37N01 (FAO 380, mid-early), P0216 (FAO 450, semi-late), P0412 (FAO 480, semi-late) and Monsanto DKC 4590 (FAO 350, early). It was investigated the variability of the yield components (yield, %kernel/cob, 1000 kernel mass) and variability of quality parameters (starch and crude protein contents) influenced by irrigation regime and maize hybrid. The results indicated that irrigation produce higher yields and favor increase of both starch content and 1000 kernel mass for all maize hybrids and a decrease of protein content. Semi-late hybrids (P0216 and P0412) present an excellent yield potential under irrigation regime, meanwhile PR37N01 is constant presenting good performances of yield components and of quality parameters under irrigated and non-irrigated regimes.
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References10
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http://www.pioneer.com/CMRoot/International/Romania/Catalog_Pioneer_2016.pdf
https://www.dekalb.ro/documents/94366/232221/Porumb
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